Results 61 to 70 of about 5,005,660 (350)

Problematic issues of ensuring the quality of road construction materials and products in the context of their certification in Ukraine according to DSTU EN ISO/IEC 17065:2019 and the law of Ukraine “On the provision of construction products on the market [PDF]

open access: yesДороги і мости
Introduction. The article examines the importance of certification of road construction materials as one of the main tools for ensuring their quality. Problems.
Andrii Skrypnyk   +3 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Analysis of international experience in implementing “Design-Build” and “Design-Build-Operate” contracts [PDF]

open access: yesДороги і мости
Introduction. The article examines the international experience of implementing large infrastructure projects in various countries using the “Design-Build” and “Design-Build-Operate” methods.
Viktor Komar
doaj   +1 more source

Assessment of Road Rehabilitation in Ibadan, Nigeria

open access: yesIndonesian Journal of Geography, 2020
The study examined road rehabilitation in Ibadan North East Local Government of Oyo State, Nigeria. The data used in this study was obtained from both primary and secondary sources.
Adewale Yoade   +2 more
doaj   +1 more source

Model-based estimation of off-highway road geometry using single-axis LADAR and inertial sensing [PDF]

open access: yes, 2006
This paper applies some previously studied extended Kalman filter techniques for planar road geometry estimation to the domain of autonomous navigation of off-highway vehicles.
Cremean, Lars B., Murray, Richard M.
core  

The Road to School. The Barcelona case [PDF]

open access: yes, 2017
Mobility of the young population between 6 and 10-year-old has been continuously decreasing the last decades causing problems of health (obesity) and decreasing the development of spatial skills along with the sense of community. The paper focuses on the
Fernández Alarcón, Vicenç   +1 more
core   +2 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Modeling hepatic fibrosis in TP53 knockout iPSC‐derived human liver organoids

open access: yesMolecular Oncology, EarlyView.
This study developed iPSC‐derived human liver organoids with TP53 gene knockout to model human liver fibrosis. These organoids showed elevated myofibroblast activation, early disease markers, and advanced fibrotic hallmarks. The use of profibrotic differentiation medium further amplified the fibrotic signature seen in the organoids.
Mustafa Karabicici   +8 more
wiley   +1 more source

Operating speed as a key factor in studying the driver behaviour in a rural context

open access: yesTransport, 2016
The research aims to explore the effects of geometric road features on driver speed behaviour in order to identify unsafe road segments where high reductions in speed between successive road elements occur.
Francesca Russo   +2 more
doaj   +1 more source

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